Available from: http://www. planalto. (in Portuguese) Brasil. Labour Code — Consolidation (Decreto-Lei no. of 22 Dec. Code of procedure in labour cases (Codigo proce- sal del trabajo — Decreto-ley no. GML, 50 mL, $ GX50ML, 50 mL kontrollierte Droge in Deutschlandpsicótropo (Spain); Decreto Lei 15/ Tabela IV (Portugal).

Author: Zulura Dora
Country: Antigua & Barbuda
Language: English (Spanish)
Genre: Science
Published (Last): 21 July 2005
Pages: 413
PDF File Size: 15.64 Mb
ePub File Size: 12.17 Mb
ISBN: 937-5-66935-201-4
Downloads: 55728
Price: Free* [*Free Regsitration Required]
Uploader: Feshicage

Sunny Jiang and Yiping Cao Received: Two groups of bacteriophages that infect Escherichia coli, somatic and F-specific coliphages, have been used in academia as both fecal and viral indicators for many decreto no Regulatory authorities in different parts of the world are beginning to consider coliphages as indicators of water quality in a range of settings.

However, issues such as their potential replication in natural water environments, the cumbersome detection and enumeration methods, a lack of definition concerning which of the two groups should be included in future decreto no 08, and the lack of a clear correlation between coliphages and human viruses and health risks in different water settings remain controversial.


The conclusions are that: Introduction Bacteriophages or phages are viruses that infect bacteria. They consist of at least a nucleic acid molecule, the genome, surrounded by a protein coat called capsid.


Many phages also contain additional leu such as tails and spikes. Much less frequently, they contain lipids. The sizes of phages are in the range of viral dimensions. These features imply that in terms of composition, structure, morphology, and capsid size, phages share many properties with animal, and hence human, viruses.

In fact, there is an elevated degree of consensus that decreto no 08 persistence in the decreho and resistance to treatment of bacteriophages resemble those of viruses. Bacteriophages only can replicate inside susceptible and metabolizing host bacteria.

A given bacteriophage can only infect certain bacteria and therefore they are considered as host specific.

The degree of host specificity is wide-ranging and depends on the bacteriophage. Receptor molecules on the surface of the bacteria mainly determine the host-specificity of phages.

Phage receptors have been described in different parts of bacteria capsule, cell wall, flagella, and pili. Decreo attached to the receptors located in the cell wall are the most common, normally known as somatic phages.

Gelatin veronal buffer | Krackeler Scientific, Inc.

Two groups of bacteriophages that infect E. The high concentration of coliphages found in raw wastewater and many other matrices contaminated with fecal remains, the easy, fast, and cost-effective detection and enumeration methods, their decreto no 08 in the water environment, and their resistance to treatment used for viruses make indicator bacteriophages good surrogate indicators for a range of applications.

Furthermore, regulatory authorities in different parts of the world decreto no 08 beginning to consider coliphages as indicators of water quality. Examples of regulatory guidelines that involve bacteriophages include those concerning water reclamation [ 78 ], groundwater [ 9 ], and biosolids used in agriculture [ ].


However, the use of coliphages as indicators in water quality control is not free from controversy. In this review, we will attempt to address the contentious issues.

Coliphages Coliphages are bacteriophages that infect E. In fact, the name is very vague, since it can decreto no 08 to phages that infect any strain of E. From the point of view of using phages as indicators in the water environment, there decreto no 08 an unofficial consensus that the term applies to phages that infect certain host strains. This will be addressed in the Methods section below. Somatic coliphages are a heterogeneous group of bacteriophages that infect Escherichia coli through the cell wall Figure 1.

Hypokalemic periodic paralysis HOKPP is characterized by episodes of muscle paralysis associated with a Last week, Surya Subedi, the United Nations’ special rapporteur on the situation of human

Author: admin